Liquid storage and dispensing apparatus



J. J. CATRON.

LIQUID STORAGE AND DISPENSING APPARATUS: APPLICATION FILED MAY 2. 1919.

1,352,788. 1 Patel ltedSept. 14,1920.

2 SHEETS-SHEET 1.

JJ Clwrozz.

J.J.CATR0N. LIQU'ID STORAGE AND DISPENSING APPARATUS.

APPLICATION FILED MAY 2, I919.

Patented Sept. 14, 1920.

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LIQUID STORAGE AND DISPENSING APPARATUS.

Specification of Letters I Patent. Patented Sept, 192

Application filed May 2, 1919. Serial No. 294,277.

Toall whom it may concern:

Be it known that I, JOHN J. CATRON, a citizen of the United States,residin at Bonham, in the county of Fannin and tate ing apparatuses;

The purpose of the invention is to provide an air pressure system ofstorage and discharge for inflammable liquids which 1nvolves a highfactor of safety and a positive means of discharge as well as eflicienteconomical operation. In carrying out the invention a storag: tank isunited with a pressure tank. T storage tank has a filling inlet providedwith a means of limiting the quantity and of liquid stored, wherebyample space 1s Q left in the storage tank to accommodate "the contentsof the pressure tank, should said contents be displaced into the storagetank. A feature of importance is a dis charge of liquid from thepressure tank and precluding the possibility of the compressed airentering the liquid discharge pipe. other, feature is that all theopenings are in 'valvcs' and controls are wholly within the tanks andaccessible through the top of the storage tank.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accom-.

panying drawings, in which an example of the invention is shown andwherein: a

Figurel is a view of an'apparattus constructed lEiaCCOIdaDCQ with theinvention, partially tion, v

Fig. 2 is a vertical sectional view of the same, and

Fig. 3 is a sectional detail showing the opened and closed positions ofthe displacement valve.

In.the drawings the numeral 1 designates a storage tank havin a man-hole2 at the center of its top. ressure tank 3 is united to the bottom 0 thetank 1 at the center thereof and closed by dished cap 4 which forms partof the bottom ofthe tank '1. A filling 601131 this made at the top of toa point above the bottom of the stora e a tank. A bracket arm 8 issupported ontfi elevation and partially in sec-' pivoted to the has itslonger end bent upward-at an angle.

A float member 25 is fastened to the anguthe tank 1 and a filling pipe 6extendsdown e lower'end of the pipe and has one end of a horizontallever 9 pivoted thereto. The arm carries a valve 7 hinged thereon andadapted to seat against the bracket and seal the pipe when .the arm isswung up. The

.outer end of the arm is pivoted to the lower end of a rod 10 extendingup through a bracket 6' on the pipe' 6; A float 11 is fastened on theupper end of the rod and its. descent is limited by the bracket. It willbe seen that when the tank has been filled to a level above the bracketthe float will rise therefrom and seat the valve 7 so that no moreliquid can enter the tank 1: The level attained leaves a space at thetop of the tank 1 at least equal to the ca acity of the pressure tank;and thus shoul the pressure tank overflow the contents will beaccommodated in the storage tanks T At the center of the top of thepressure tank a nipple 17 'is secured and receives a cap 16. A tube15'mounted in the cap depends into the pressure tank and carries a valvecasing 12 above the cap. valve 14 is hinged in the casing so as to swingin to admit'fluid from the tank 1 and to close to prevent a reverseflow. A nut 13 closes the top 'of the casing and may be removed to-giveaccess to the-valve. A com- A check a pressed air pipe 18 leads throughthe top -a point above the bottom of the tank. 3 up through the cap 16to the top of the tank 1. The tank 1 is also provided with a vent 20 inits top. I On the lower end of the pipe 19 a collar 21 is secured. Adisplacement valve22 is hinged to the collar. A float lever 23 is underside of the valve and lar end of the lever;.while a similar mem-- ber24, but much smaller, is fastened to the short end of the lever. Whenthe liquid in the tank 3 falls to-a low level the member 25 beingslightly heavier swings down and thus seats the valve 22 against thecollar 21. How'ever when the ressure tank is filled with liquid themem..er 25 being considerably larger than the member 24 1S displacedupwardowing to its greater liquid displacement, thus holding the valveopen. A valve casing 26 is included in the pipe 1-9 in the tank 3. .Thiscasing contains a check valve 27 which opens upward to permit thedischarge-of liquid but seats to prevent a reverse flow.

It will be seen-that compressed air, being admitted to the pressure tankfrom the pipe 18, will enterthe-tube 15 and seat the valve 14. The valve22 being open, liquid in the pressure tank will thus be forced outthrough the pipe 19. lVith the valve 14 seated no air can enter thestorage tank. As soon as the air is'cut off from the pressure tank theliquid will stop discharging and when the pressure is relieved the checkvalve 27 will seat thus preventing the liquid in the pipe 19 above saidvalve from flowing back into the tank. When the liquid in the pressuretank is above the low level the displacement valve will occupy theposition shown in ,dotted lines in Fig. 3, but when said liquid reachesthe low level the valve will close as is shown in full lines in Figs. 1and 3 thus preventing air entering the discharge pipe 19, the lower endof which is at all times immersed. The air pressure being cut off, theliquid in the storage tank 1 will unseat the valve 14 and fill thepressure tank.

What I claim, is:

' 1. A liquid storage and dispensing apparatus, comprising a storagetank, an inlet pipe leading into'the storage tank, avalve to close theinlet pipe, floatcontrolled means to close the valve when the liquidreaches a predetermined level in. the storage tank for permanentlymaintaining a space in the upper portion of the storage tank, a pressuretank arranged near the stora e tank, a supply pipe having one endleading into the pressure tank and its opposite end leading into thestorage tank, a check valve to close the supply pipe and seated bypressure within the pressure tank, an outlet pipe leading into thepressure tank, float control means to close the outlet pipe and arrangedwithin the pressure tank, and a pressure supply pipe leading into thepressure tank..

2. A liquid storage and dispensing apparatus, comprising a storage tank,an inlet pipe extending into the storage tank and 1 having its lower endarranged near the bottom of the storage tank, a valve to close theoutlet end of the inlet pipe, a float arranged within the storage tankand connected with the valve and adapted to close it when the liquidlevel in the storage tank reaches a predetermined height for maintaininga permanent spacein the top of the storage tank, a pressure tankarranged beneath the storage tank, a supply pipe having its lower endwithin the pressure tank and its upper end within the storage tank, acheck valve within the supply pipe and closing toward the upper end ofthe supply pipe and being seated by pressure in the pressure tank, an

outlet pipe leading into the pressure tank and having a check valve, afloat controlled valve to'close the intake end of the outlet pipe, ant apressure supply pipe leading into the pressure tank.

' 3. A liquid storage and dispensing ap-. paratus, comprising a storagetank having an opening in its lower portion, means for supplying aliquid to the same, a pressure tank having its upper end secured withinthe opening of the storage tank, a head closing Y the upper end of thepressure tank and prosi nature. AT ON.

